scholarly journals Microparticles globally reprogram Streptomyces albus toward accelerated morphogenesis, streamlined carbon core metabolism, and enhanced production of the antituberculosis polyketide pamamycin

2020 ◽  
Vol 117 (12) ◽  
pp. 3858-3875
Author(s):  
Martin Kuhl ◽  
Lars Gläser ◽  
Yuriy Rebets ◽  
Christian Rückert ◽  
Namrata Sarkar ◽  
...  
Keyword(s):  
Enhanced Production ◽  
Streptomyces Albus ◽  
Carbon Core ◽  
Core Metabolism

TEM of grain growth and phase transformations during creep of SCS-6 silicon carbide fibers

1995 ◽  
Vol 53 ◽  
pp. 350-351
Author(s):  
L. A. Giannuzzi ◽  
C. A. Lewinsohn ◽  
C. E. Bakis ◽  
R. E. Tressler
Keyword(s):  
Silicon Carbide ◽  
Creep Rate ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Primary Creep ◽  
Excess Carbon ◽  
Silicon Carbide Fibers ◽  
Sic Fiber ◽  
Carbon Core ◽  
Grain Width

The SCS-6 SiC fiber is a 142 μm diameter fiber consisting of four distinct regions of βSiC. These SiC regions vary in excess carbon content ranging from 10 a/o down to 5 a/o in the SiC1 through SiC3 region. The SiC4 region is stoichiometric. The SiC sub-grains in all regions grow radially outward from the carbon core of the fiber during the chemical vapor deposition processing of these fibers. In general, the sub-grain width changes from 50nm to 250nm while maintaining an aspect ratio of ~10:1 from the SiC1 through the SiC4 regions. In addition, the SiC shows a <110> texture, i.e., the {111} planes lie ±15° along the fiber axes. Previous has shown that the SCS-6 fiber (as well as the SCS-9 and the developmental SCS-50 μm fiber) undergoes primary creep (i.e., the creep rate constantly decreases as a function of time) throughout the lifetime of the creep test.

Activation of cytochrome c to a peroxidase compound I-type intermediate by H2O2: relevance to redox signalling in apoptosis

2004 ◽  
Vol 71 ◽  
pp. 97-106 ◽  
Author(s):  
Mark Burkitt ◽  
Clare Jones ◽  
Andrew Lawrence ◽  
Peter Wardman
Keyword(s):  
Cytochrome C ◽  
Hydroxyl Radical ◽  
Redox Regulation ◽  
Chemotherapeutic Agents ◽  
Tyrosyl Radical ◽  
Compound I ◽  
Definitive Evidence ◽  
Enhanced Production ◽  
Physico Chemical

The release of cytochrome c from mitochondria during apoptosis results in the enhanced production of superoxide radicals, which are converted to H2O2 by Mn-superoxide dismutase. We have been concerned with the role of cytochrome c/H2O2 in the induction of oxidative stress during apoptosis. Our initial studies showed that cytochrome c is a potent catalyst of 2′,7′-dichlorofluorescin oxidation, thereby explaining the increased rate of production of the fluorophore 2′,7′-dichlorofluorescein in apoptotic cells. Although it has been speculated that the oxidizing species may be a ferryl-haem intermediate, no definitive evidence for the formation of such a species has been reported. Alternatively, it is possible that the hydroxyl radical may be generated, as seen in the reaction of certain iron chelates with H2O2. By examining the effects of radical scavengers on 2′,7′-dichlorofluorescin oxidation by cytochrome c/H2O2, together with complementary EPR studies, we have demonstrated that the hydroxyl radical is not generated. Our findings point, instead, to the formation of a peroxidase compound I species, with one oxidizing equivalent present as an oxo-ferryl haem intermediate and the other as the tyrosyl radical identified by Barr and colleagues [Barr, Gunther, Deterding, Tomer and Mason (1996) J. Biol. Chem. 271, 15498-15503]. Studies with spin traps indicated that the oxo-ferryl haem is the active oxidant. These findings provide a physico-chemical basis for the redox changes that occur during apoptosis. Excessive changes (possibly catalysed by cytochrome c) may have implications for the redox regulation of cell death, including the sensitivity of tumour cells to chemotherapeutic agents.

Exemplar Abstract for Streptomyces albus (Rossi Doria 1891) Waksman and Henrici 1943 (Approved Lists 1980) emend. Nouioui et al. 2018.

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Dorothea Taylor ◽  
George M Garrity
Keyword(s):  
Streptomyces Albus

CHAMPION 1A

Alloy Digest ◽  
1990 ◽  
Vol 39 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Properties ◽  
Heat Treating ◽  
Core Wire ◽  
Wire Electrode ◽  
Low Carbon ◽  
Carbon Core

Abstract Champion 1A is a flux coated, extra-low carbon core wire electrode developed to overcome many of the difficulties associated with welding chrome-moly and hard-to-weld steels. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on heat treating and joining. Filing Code: SA-451. Producer or source: Champion Welding Products Inc..

Some Effects of Streptomyces albus and Penicillium Spp. on Rhizobium meliloti

1950 ◽  
Vol 14 (C) ◽  
pp. 188-191 ◽  
Author(s):  
Geo. D. Thornton ◽  
Jose de Alencar ◽  
F. B. Smith
Keyword(s):  
Rhizobium Meliloti ◽  
Streptomyces Albus ◽  
Penicillium Spp

ENHANCED PRODUCTION OF TRICHODERMA CELLULASES THROUGH RECONSTRUCTION OF CELLULASE GENES

2018 ◽  
Vol 3 (1) ◽  
pp. 49-50
Author(s):  
Kh. A. El- Halafawy ◽  
Ragaa A. Eissa ◽  
H. A. Hamza ◽  
A. I. Fahmi
Keyword(s):  
Enhanced Production

Enhanced Production of Cholesterol Oxidase from Bacillus sp. COX-T3 in a Biphasic System

2013 ◽  
Vol 2 (2) ◽  
pp. 147-154
Author(s):  
Lata Kumari ◽  
Shamsher Kanwar
Keyword(s):  
Cholesterol Oxidase ◽  
Biphasic System ◽  
Bacillus Sp ◽  
Enhanced Production
Sign in / Sign up

Export Citation Format

Share Document